Felt better for 3 days. Fermented beetroot juice

Hey guys,

My mom made a juice from fermenting beetroot. Very natural and healthy, a bit of mold (good mold) was growing on top but the juice beneath it was good to drink.
I started drinking it (half a cup each day for a week) and it made me feel better, for like 3 days. Today I feel a bit worse again.
By better I mean my erection quality improved from 50 to like 80 percent, I maintained an erection for quite a while. So I was actually pretty suprised.
But this situation made me think it probably has something to do with the gut… but what… anyone else had something natural to eat/drink that made them feel better?

I think Beets are 5AR’s